{"id":"CVE-2004-0156","aliases":["DEBIAN-CVE-2004-0156","DSA-485","EUVD-2004-0156","GHSA-q5x9-4p6f-q4m6"],"status":"published","title":"Format string vulnerabilities in the (1) die or (2) log_event functions for ssmtp before 2.50.6...","description":"Format string vulnerabilities in the (1) die or (2) log_event functions for ssmtp before 2.50.6 allow remote mail relays to cause a denial of service and possibly execute arbitrary code.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.03504,"percentile":0.89262,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2004-04-14T00:00:00Z","modified":"2026-10-21T15:47:35Z","fixes":[{"ecosystem":"Debian:12","package":"ssmtp","fixed_in":["2.60.7"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"ssmtp","fixed_in":["2.60.7"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"ssmtp","fixed_in":["2.60.7"],"sources":["osv"]},{"ecosystem":"Debian:3.0","package":"ssmtp","fixed_in":["2.50.6.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"ssmtp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.60.7"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"ssmtp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.60.7"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"ssmtp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.60.7"}]}]},{"source":"osv","ecosystem":"Debian:3.0","package":"ssmtp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.50.6.1"}]}]}],"products":[{"vendor":"ssmtp","product":"ssmtp"}],"references":[{"url":"http://secunia.com/advisories/11571","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://www.debian.org/security/2004/dsa-485","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Patch","Vendor Advisory","advisory","fix"]},{"url":"http://marc.info/?l=bugtraq\u0026m=108403772130855\u0026w=2","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","web"]},{"url":"http://secunia.com/advisories/11384","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://securitytracker.com/id?1009788","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","web"]},{"url":"http://secunia.com/advisories/11378","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://www.osvdb.org/5360","tags":["vdb-entry","x_refsource_OSVDB","x_transferred","web"]},{"url":"http://www.osvdb.org/5361","tags":["vdb-entry","x_refsource_OSVDB","x_transferred","web"]},{"url":"http://www.securityfocus.com/bid/10150","tags":["vdb-entry","x_refsource_BID","x_transferred","web"]},{"url":"http://security.gentoo.org/glsa/glsa-200404-18.xml","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred","Patch","Vendor Advisory","advisory","fix"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/15872","tags":["vdb-entry","x_refsource_XF","x_transferred","web"]},{"url":"http://secunia.com/advisories/11485","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2004-0156"},{"url":"https://github.com/advisories/GHSA-q5x9-4p6f-q4m6"},{"url":"https://security-tracker.debian.org/tracker/CVE-2004-0156","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2004-0156","description":"Format string vulnerabilities in the (1) die or (2) log_event functions for ssmtp before 2.50.6 allow remote mail relays to cause a denial of service and possibly execute arbitrary code.","status":"published","published":"2004-04-17T04:00:00Z","modified":"2024-08-08T00:10:03.604Z","updated_at":"2026-11-02T14:34:54.758165Z"}],"euvd":[{"id":"EUVD-2004-0156","description":"Format string vulnerabilities in the (1) die or (2) log_event functions for ssmtp 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